.content{
    width: 100vw;
    background: #f4f4f4;
    box-sizing: border-box;
    padding: 40px 10px 60px; 
    position: relative;
}
.left{
    width: 100px;
    position: absolute;
    left: 0;
    top: 40px;
    height: 450px;
    background:#fff;
    border-radius: 4px;
    z-index: 20;
}
.left div{
    height: 36px;
    line-height: 36px;
    font-size: 12px;
    padding: 0 10px;
    box-sizing: border-box;
}
.active{
    background: #f4f4f4;
    color:blue;
}

.right{
    padding-left: 110px;
    box-sizing: border-box;
    width: 100%;
    height: 450px;
    overflow-y: scroll;
    position: relative;
}
.unit{
    background-color: #fff;
    padding: 10px;
}
.unit div{
    border-bottom: 1px solid #ccc;
}